International agreements

1. Stockholm Convention (2001): eliminating or restricting persistent organic pollutants (POPs).
2. UNFCCC (1992): setting up the global framework for climate change talks (UN Framework Convention on Climate Change, opened for signature at the Rio Earth Summit).
3. UNCCD (1994): combating desertification and land degradation in drylands (UN Convention to Combat Desertification).
4. CBD (1992): conserving biodiversity as a whole and using it sustainably (Convention on Biological Diversity, opened for signature at the Rio Earth Summit).
5. Source: https://www.unep.org/

Answer: eliminating or restricting persistent organic pollutants (POPs)

1. Statement 1 is correct: UNFCCC (1992): setting up the global framework for climate change talks (UN Framework Convention on Climate Change, opened for signature at the Rio Earth Summit).
2. Statement 2 is wrong: it pairs Basel Convention (1989) with "phasing out ozone-depleting substances such as CFCs". In fact, Basel Convention (1989): controlling the movement of hazardous wastes across borders.
3. Source: https://www.unep.org/

Answer: 1 only

1. Statement 1 is correct: Rotterdam Convention (1998): prior informed consent before trade in certain hazardous chemicals and pesticides.
2. Statement 2 is correct: CBD (1992): conserving biodiversity as a whole and using it sustainably (Convention on Biological Diversity, opened for signature at the Rio Earth Summit).
3. Source: https://www.unep.org/

Answer: Both 1 and 2